According to the book's description on Amazon, author Stephanie Messenger "has devoted her life to educating people about vaccines and natural health choices."

Natural meaning anti-vax, of course. From the book's back cover

Melanie's Marvelous Measles was written to educate children on the benefits of having measles and how you can heal from them naturally and successfully. Often today, we are being bombarded with messages from vested interests to fear all diseases in order for someone to sell some potion or vaccine, when, in fact, history shows that in industrialized countries, these diseases are benign and, according to natural health sources, beneficial to the body.

Having raised three children vaccine free and childhood disease free, I have experienced many times when my children's vaccinated peers succumb to the childhood diseases they were vaccinated against. Surprisingly, there were times when my unvaccinated children were blamed for their peers' sickness. Something which is just not possible when they didn't have the diseases at all.

The internet isn't taking this one lying down, of course; the Amazon reviews include requests for a Braille version for a child blinded by measles and a glowing review from someone who claims to "specialize in itty bitty coffins". Leave your own review and, more importantly, VACCINATE YOUR KIDS.